The Optimization of Building Energy Consumption in Universitas Negeri Padang Using Building Energy Simulation Program (original) (raw)
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International Journal of Innovation in Mechanical Engineering and Advanced Materials
The electricity is very important to support activities in office building .The equipment like AC ( Air conditioning ) needs more electricity to be operated. The is almost 60% is use to support this system (AC). This percentage describe that air condition system is an equipment that needs more electricity in the office and its become inefficiency in using electricity. To take overcome for this problem we need to efficiency in using energy. One of the method that now used to efficient that energy is called “ energy conversation” This method is using to saving the energy There is one thing that must be done in this activity which is “ energy audit “. Audit energy is one of method calculate IKE ( Intension Consumption Energy) at on the building.The first preliminary audit shown that more energy, which 60% is use to operated the air conditioning (AC) system and 30% to operate lighting system. IKE for the lighting system is still below from maximum standard which is 15 watt/m²The opp...
Journal of the Civil Engineering Forum, 2018
Energy Consumption Intensity (IKE) is an indicator that is used to determine the amount of energy used per area by an airconditioned building within a month or a year as a reference to determine how much energy conservation can be done in the building. To determine the energy consumption of buildings and to determine the savings opportunities, there should be an effort to review the energy consumption through energy audits. In this research, energy consumption analysis was conducted at the Main Office building of the Faculty of Engineering (KPFT) and Department of Civil Engineering and Environmental (CEED) of Universitas Gadjah Mada Yogyakarta. The analysis was conducted on the main variables of energy efficiency, namely: measurement of temperature and relative humidity, calculation of Overall Thermal Transfer Value (OTTV) and Roof Thermal Transfer Value (RTTV), calculation of Energy Consumption Intensity (IKE) in air-conditioned and non-airconditioned rooms as well as an analysis of opportunities to increase the efficiency of energy consumption in the buildings. The results showed that the temperature and the relative humidity of the KPFT building = 28.4℃ and 62%, while CEED Building = 28.4℃ dan 65%. Calculation of average OTTV of the KPFT building = 17.61 W/m 2 and CEED building = 43.05 W/m 2. Average IKE of the KPFT building in 2015 was 3.25 kWh/m 2 /month and in 2016 was 3.45 kWh/m 2 /month, while the average IKE of CEED building in 2015 was 1.5 kWh/m 2 /month and in 2016 was 0.79 kWh/m 2 /month. Based on the calculation of IKE in both buildings, they are still considered in the category of efficient. However, based on the measurement of temperature and relative humidity, it shows that in both buildings air conditioning is still necessary to achieve the level of thermal comfort, therefore an increase of efficiency in the load is needed to avoid wastage.
Jurnal edukasi elektro, 2023
Electrical energy is one of the basic human needs in carrying out various activities or daily activities, especially in office buildings such as office buildings of state higher education institutions, namely the Sumatra Institute of Technology (ITERA). Office buildings are the third highest consumer of electrical energy after shopping centers and hotels. The high demand for electrical energy requires the user sector to make efficiency in energy use. Before making efficiency, it is necessary to know the profile of electrical energy consumption including energy consumption intensity (ECI) and significant energy users. Therefore, in this study, an analysis of electrical energy consumption in each ITERA office building was carried out, through observation and interviews according to SNI / ISO 50002: 2018 energy audit procedures. The results obtained show that the total energy use of the 6 largest buildings (A, B, C, D, E, and F) in May 2023 is 144768 kWh and from the calculation of the ECI value is in the very efficient category (7.44 kWh/m 2 /month). From 6 existing buildings, there are 3 buildings that are very efficient, 1 building is efficient, and 2 buildings are quite efficient. Then, significant energy users were found by 83% in building C AC. Recommendations for saving energy in the effort of energy conservation and efficiency that can be done include, making changes in habits / patterns of use of electrical energy user equipment, especially in air conditioners and dispensers, so as to save electricity 2-21%, and retrofitting refrigerant AC types of split ducts and cassettes that still use R-22 with MC-22 which can save electricity 15-25%.
Report of Energy Audit in Building F1, F3, F4, and G6 of Universitas Muhammadiyah Yogyakarta
Journal of Electrical Technology UMY, 2019
Energy audits on buildings are carried out to determine the load profile of electrical energy usage and to avoid wasting electricity. This energy waste can cause the use of electricity in buildings that are not efficient. An electrical energy audit is carried out to produce actual data that is in accordance with existing building conditions. This study conducted on buildings F1, F3, F4, and G6 in Universitas Muhammadiyah Yogyakarta to determine the value of the intensity of energy consumption used, whether it is following the Indonesian National Standards Agency. Measurement of electrical energy consumption using a tool that is the Power Factor Analyzer. The results of the calculation of the value of the intensity of electrical energy consumption showed that the buildings of F1, F3, F4, and G6 at the Universitas Muhammadiyah Yogyakarta obtained an average energy intensity value of 10.18 kWh/month. In this case, building standards are known to be between 7.92-12.08, which means that the building standards are categorized as efficient because they are under established standards. Furthermore, the use of electrical energy consumption used in buildings F1, F3, F4, and G6 in Universitas Muhammadiyah Yogyakarta in a month that is equal to 190,952.769 kWh/month.
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Alam Selangor. A fact has shown that the buildings are responsible for using a vast amount of energy. The energy consumption in buildings is increased by air conditioning system. To implement actions to save energy in buildings, it is necessary to measure and study its energy efficiency. This study describes the result of user attitudes towards air conditioning usage, electric energy consumption pattern and building energy index in building. Through the site survey, the results show that, the operation of air conditioning system was unsatisfying. In conclusion, the air conditioning energy consumption can be reduced by several proposed measures. The proposed measures are categorized into two ways: by improving user attitude towards using air conditioning through awareness and technical improvement.
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The energy audit program was carried out for Faculty of Engineering Technology (FTK), University Malaysia Pahang by internal energy audit team. This paper presented annual energy consumption trend for FTK building, measurement finding for room data survey (air conditioning temperature and humidity comfort performance & CO 2 level for air quality) and lighting, Building Energy Index (BEI) value and appropriate recommendation in regards of energy saving practice and technological solution. According to those analysis, value for Building Energy Index (BEI) in FTK building is 98.035 kWh/m 2 /year, Air Conditioning Energy Index (ACEI) is 73.254 kWh/m 2 /year while for Lighting Energy Index (LEI) is 11.402 kWh/m 2 /year. Total energy consumption estimated for 2017 is 31, 7951.375 kWh per year. The implementation of the proposed energy conservation measures were expected to give positive results where the total cost saving per year is estimated about RM 48,551.20. Finally, it was recommended to implement three major energy conservation measures (ECMs) in specific: implementation of Sustainable energy management system (SEMS), maintenance of air conditioning system and retrofitting of LED lighting. As a result, FTK is targeted to achieve 30% annual energy saving about from the total energy consumption.
Analysis of energy consumption and potential energy savings of an institutional building in Malaysia
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The building sector is one of the major energy users and greenhouse gasses emitter. An energy audit is one of the effective approaches to identify efficient energy usages and energy savings. A details walk-through energy audit has been conducted to analyse the energy consumption pattern and potential energy conservation opportunities (ECOs) in Research and Development (R&D) building at Universiti Malaya from March to May 2017. Eight different appliances were categorised to analyse and the audit results were verified with the building’s utility bill which on average were between 160 MWh to 250 MWh and RM 80 k to RM 120 k per month. In this case, it was found that the air-conditioning (34%), lighting (18%) and PC/laptops (10%) are the main appliances that contributed to the total energy consumption for the building. The replacement to LEDs light in three different stages marked as Level A, Level A + B and Level A + B + C revealed to be a good solution for energy conservation which resulted in annual energy savings of 72,750 kWh, 110,381kWh and 144,386 kWh. It concurrently contributes to annual savings of RM26554, RM40289 and RM52701 based on 9 h daily operating time with the payback period of about 1 year.
ENERGY CONSERVATION OF THE AIR-CONDITIONING SYSTEM OF HOTELS BUILDING IN MAKASSAR CITY
Available of hotel building in Makassar is supported by the climate condition which wet tropical climate. The rain season which significant as part of moth in a year. The dry season which sufficient compare with rain season. The function of building envelope in external of hotel building architecture appointment of energy conservation criteria which become comparison in design process of hotel building, particularly include the exterior field design in relation with the building performance. That cause require of method to be less of external load such as suitable with Indonesia National Standardization in appoitnment of criteria about building envelope design which stated in Overall Thermal Transfer Value -OTTV < 45 Watt/m 2 .The research approach are mix between qualitative and quantitative methods. Location of research in Makassar City, with reason the researcher stay there and observed of rise the hotel building which to be interested related with energy conservation system of air to see the saving energy and thermal comfort of hotel building. Data analyzed in qualitative descriptive, analyzed of building envelope, cooling load and thermal comfort. The result of research found the energy conservation system of air have used on five hotel building which showed the energy from AC in the room which effected of OTTV. Analyzed of conservation control energy saving from air-conditioning system from the hotel building appointment by cooling weight analysis in internal or external. The efficiency control of energy saving conservation not yet applied with good because the used of AC in everyday, that can Nasrullah, Ramli Rahim, Baharuddin Hamzah, Rosady Mulyadi http://www.iaeme.com/IJCIET/index.asp 116 editor@iaeme.com to be efficient suitable with the rooms were filled. The thermal comfort of energy conservation system of air from the room suitable with SNI standard 6390:2011.